May 28, 2020 · Sewage sludge can be used as a source of organic matter and nutrients, whereas sugarcane bagasse can be used as a decompaction material; by composting a mixture of the two, a low-cost substrate
May 28, 2020 · Sewage sludge can be used as a source of organic matter and nutrients, whereas sugarcane bagasse can be used as a decompaction material; by composting a mixture of the two, a low-cost substrate
Nov 1, 2020 · Similarly, sludge composting has been used in 25 out of 27 countries in Europe, which accounted for as much as 42% of total sludge production in 1995 (3 million Mg of dry matter in suspend solids), and it quickly increased to 59% in 2010 (Collivignarelli et al., 2019), finally being used for agricultural utilization.
Mar 1, 2016 · ResultsMicrobiological analysis of the initial fresh mixture (sewage sludge/sawdust) showed that the total heterotrophic bacteria was 1.17 × 106 CFU/g of fresh compost, coliforms 4.7 × 104 CFU/g
May 8, 2020 · Composting is a type of aerobic digestion. Sewage sludge can be combined with other waste materials such as wood chip, straw or green wastes prior to composting to provide a pasteurised product. Around 20−30% of the volatile solids can be converted to carbon dioxide through composting. Composting employs natural mesophilic and thermophilic
The amount of sewage sludge generated in Spain is around 1.2 million tons per year (dry matter) [11]. This waste can be used for agriculture and building materials,
Microbiol., 23 December 2021. Sec. Microbiotechnology. Volume 12 - 2021 | https://doi.org/10.3389/fmicb.2021.784071. Industrial Composting of Sewage Sludge: Study of the Bacteriome, Sanitation, and Antibiotic-Resistant Strains.
Apr 6, 2024 · It is desirable to recycle sewage sludge as fertilizer for agricultural fields. The application of sludge to agricultural soils is a measure that replaces chemical fertilizers and plays an important role in improving soil’s physicochemical and biological properties. However, there are concerns that the pollutants in sewage sludge will cause negative impacts on soil health. To closely monitor
Nov 18, 2018 · The composting process is chemically and microbiologically complex and requires an adequate aeration of the biosolid (e.g., with a turner machine) for proper maturation of the compost.
Feb 2, 2018 · The objective of this study was to examine the feasibility of sewage sludge composting using a simple aeration method. Two consecutive composting trials (run A and run B) using Japanese sludge and woodchips (1:1, v/v) were conducted in cubic boxes (0.45 × 0.45 × 0.45 m3) made by plywood at Okayama University. Air was forced up through small holes perforated on two open-ended parallel PVC
Jan 1, 2022 · Sewage sludge contains a large amount of salts (such as salts of sodium (Na), calcium (Ca), and K) and minerals that increase the EC of the soil. In this regard, Akbarnejad et al. ( 2013) reported that with increasing amounts of municipal solid waste compost and SS from 15 to 30 ton ha −1, OC and EC of soil increased.
Feb 18, 2016 · The main objectives of this study were to investigate the compostability of wastewater treatment sludge (WTS) containing different bulking agents (BAs) and to determine the most efficient BA. Four different compost trials consisting of mixtures of wheat straw (WS), plane leaf (PL), corncob (CC) and sunflower stalk (SS) with WTS were performed
Jan 1, 2011 · Sawdust (SD) was acquired from wood-working factories in the same city. Mature compost (MC) was collected from a sewage sludge composting plant naming Lvgang Municipal Sewage Sludge Treatment Plant (Qinhuangdao, China) (Chen et al., 2010). These materials were filled in three feed bins and then fed to a mixing machine by screw conveyors.
Jan 14, 2021 · 28 Citations. Metrics. In present study, the effects of carbon sources on compost process and quality were evaluated in the lab-scale sewage sludge (SS) composting. The composting
Oct 27, 2015 · In order to use sewage sludge (SS) composts in agriculture, it is extremely important to estimate the quality of compost products. The aim of this study was to investigate the quality of composted SS as a fertilizer and soil amendment especially in semi-arid areas. To determine the quality and agronomic value of the SS compost products, analyses on pH, electrical conductivity, organic matter
Nov 20, 2023 · The O 2 concentrations in the air-mobile and air-immobile regions decreased, and the L ANA gradually increased as the composting process progressed and the height of the compost pile increased. The fitted equation coupled model simulates the actual situation well and can support the accurate regulation of harmful gas production in composting